Clinical lymphangitis, caused by the following causes: a. venous bacterial infection of the lymphatic vessels, due to the lymphatic vessels and venous vascular travel, once the veins with bacterial infection, blood can directly invade the lymphatic vessels, resulting in swelling, pain, local skin temperature increase. At this time, it is necessary to strengthen anti-infection treatment, for patients with chills, high fever and other symptoms of systemic toxicity, blood culture can be taken, and sensitive antibiotics can be selected according to the results of drug sensitivity, which can control the inflammation of lymphatic vessels more quickly. Second, the disinfection treatment of patients after superficial skin rupture is not timely, which will cause external bacteria to invade into the superficial lymphatic vessels and cause local redness, swelling and pain. Patients need to disinfect the skin rupture as soon as possible, 50% magnesium sulfate or Ruyi Jinhuang cream is applied to the local skin, oral cefixime granules can control the inflammatory infection of the lymphatic vessels more quickly.